Received a call from this number. When I answered a record message kicked in - some BS about calling from the NBN, been trying to get in touch with me, and my broadband and landline were about to be disconnected in 30 days. Then said press 1 to be connected to an engineer. I hung up (of course). Then noticed the call had come from an Australian mobile number 0411 502 675. Tried call back but just rung out to voicemail. Clearly a scam but not sure if the perpetrator is the person whose voicemail I got, or if their mobile number has in some way bee 'hijacked'.